<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>书籍购物车</title>
    <link rel="stylesheet" href="./index.css" />
  </head>
  <body>
    <div id="app">
      <div v-if="books.length">
        <table>
          <thead>
            <tr>
              <th></th>
              <th>书籍名称</th>
              <th>出版日期</th>
              <th>价格</th>
              <th>购买数量</th>
              <th>操作</th>
            </tr>
          </thead>
          <tbody>
            <tr v-for="(item, index) in books" :key="index">
              <td>{{ item.id }}</td>
              <td>{{ item.name }}</td>
              <td>{{ item.date }}</td>
              <td>{{ item.price | showPrice }}</td>
              <td>
                <button @click="subCount(item)" :disabled="item.isClick">-</button>
                <span>{{ item.count }}</span>
                <button @click="addCount(item)">+</button>
              </td>
              <td>
                <button @click="removeItem(index)">移除</button>
              </td>
            </tr>
          </tbody>
        </table>
        <h2>总价格：¥{{ totalPrice }}元</h2>
      </div>
      <h2 v-else>购物车为空</h2>
    </div>

    <script src="../../lib/vue_v2.6.14.js"></script>
    <script src="./index.js"></script>
  </body>
</html>
